//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would be
//    appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
//    misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef SAMPLEINTERFACES_H
#define SAMPLEINTERFACES_H

#include "DebugDraw.h"
#include "Recast.h"
#include "RecastDump.h"
#include "PerfTimer.h"

// These are example implementations of various interfaces used in Recast and Detour.

// Recast build context.
class BuildContext : public rcContext
{
    TimeVal m_startTime[RC_MAX_TIMERS];
    int m_accTime[RC_MAX_TIMERS];

    static const int MAX_MESSAGES = 1000;
    const char* m_messages[MAX_MESSAGES];
    int m_messageCount;
    static const int TEXT_POOL_SIZE = 8000;
    char m_textPool[TEXT_POOL_SIZE];
    int m_textPoolSize;
    
public:
    BuildContext();
    virtual ~BuildContext();
    
    // Dumps the log to stdout.
    void dumpLog(const char* format, ...);
    // Returns number of log messages.
    int getLogCount() const;
    // Returns log message text.
    const char* getLogText(const int i) const;
    
protected:    
    // Virtual functions for custom implementations.
    virtual void doResetLog();
    virtual void doLog(const rcLogCategory /*category*/, const char* /*msg*/, const int /*len*/);
    virtual void doResetTimers();
    virtual void doStartTimer(const rcTimerLabel /*label*/);
    virtual void doStopTimer(const rcTimerLabel /*label*/);
    virtual int doGetAccumulatedTime(const rcTimerLabel /*label*/) const;
};

// OpenGL debug draw implementation.
class DebugDrawGL : public duDebugDraw
{
public:
    virtual void depthMask(bool state);
    virtual void begin(duDebugDrawPrimitives prim, float size = 1.0f);
    virtual void vertex(const float* pos, unsigned int color);
    virtual void vertex(const float x, const float y, const float z, unsigned int color);
    virtual void end();
};

// stdio file implementation.
class FileIO : public duFileIO
{
    FILE* m_fp;
    int m_mode;
public:
    FileIO();
    virtual ~FileIO();
    bool openForWrite(const char* path);
    bool openForRead(const char* path);
    virtual bool isWriting() const;
    virtual bool isReading() const;
    virtual bool write(const void* ptr, const size_t size);
    virtual bool read(void* ptr, const size_t size);
};

#endif // SAMPLEINTERFACES_H

